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Economics of Power Generation

Economics of Power Generation
Low power factor is usually not due to

Incandescent lamp
Induction motors
Arc lamps
Fluorescent tubes

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Economics of Power Generation
In the diminishing value method for calculating depreciation, the annual depreciation charge is independent of

Scrap value
Initial value of equipment
Useful life of equipment
The rate of interest

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Economics of Power Generation
For any type of consumer the ideal tariif is

Any of the listed here
Three part tariff
Two part tariff
Block rate tariff

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Economics of Power Generation
For a large installation, it is better to apply

Individual correction to small motors
Individual correction to large motors
None of the listed here
Bulk correction to large motors

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Economics of Power Generation
When the power factor is unity, the relation between line currnet I and supply voltage V is

None of the listed here
I is in phase with V
I lags V by 90°
I leads V by 90°

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Economics of Power Generation
By the use of which of the following power factor can be improved?

Synchronous compensators
Any of the listed here
Static capacitors
Phase advancers

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